材料物理与化学进展(英文)最新文献_第5页

Growth and Simulation Study of Glycine Sodium Nitrate Non-Linear Single Crystal 甘氨酸-硝酸钠非线性单晶的生长及模拟研究

材料物理与化学进展(英文) Pub Date : 2021-01-20 DOI: 10.4236/AMPC.2021.111003

W. S. Abdelrahman, A. M. Abdelbagi, Abbaker A. Abdalla, M. Ahmed

引用次数: 0

Experimental Characterization of ALD Grown Al2O3 Film for Microelectronic Applications 用于微电子应用的ALD生长Al2O3薄膜的实验表征

材料物理与化学进展(英文) Pub Date : 2021-01-20 DOI: 10.4236/AMPC.2021.111002

Yuxi Wang, Yi-Dar Chen, Yong Zhang, Zhaoxin Zhu, Tao Wu, X. Kou, Pingping Ding, R. Corcolle, Jang-Hyeon Kim

{"title":"Experimental Characterization of ALD Grown Al2O3 Film for Microelectronic Applications","authors":"Yuxi Wang, Yi-Dar Chen, Yong Zhang, Zhaoxin Zhu, Tao Wu, X. Kou, Pingping Ding, R. Corcolle, Jang-Hyeon Kim","doi":"10.4236/AMPC.2021.111002","DOIUrl":"https://doi.org/10.4236/AMPC.2021.111002","url":null,"abstract":"The study of high dielectric materials has received great attention lately as a key passive component for the application of metal-insulator-metal (MIM) capacitors. In this paper, 50 nm thick Al2O3 thin films have been prepared by atomic layer deposition technique on indium tin oxide (ITO) pre-coated glass substrates and titanium nitride (TiN) coated Si substrates with typical MIM capacitor structure. Photolithography and metal lift-off technique were used for processing of the MIM capacitors. Semiconductor Analyzer with probe station was used to perform capacitance-voltage (C-V) characterization with low-medium frequency range. Current-voltage (I-V) characteristics of MIM capacitors were measured on precision source/measurement system. The performance of Al2O3 films of MIM capacitors on glass was examined in the voltage range from −5 to 5 V with a frequency range from 10 kHz to 5 MHz. Au/Al2O3/ITO/Glass MIM capacitors demonstrate a capacitance density of 1.6 fF/μm2at 100 kHz, a loss tangent ~0.005 at 100 kHz and a leakage current of 1.79 × 10−8 A/cm2 at 1 MV/cm (5 V) at room temperature. Au/Al2O3/TiN/Si MIM capacitors demonstrate a capacitance density of 1.5 fF/μm2 at 100 kHz, a loss tangent ~0.007 at 100 kHz and a lower leakage current of 2.93 × 10−10 A/cm2 at 1 MV/cm (5 V) at room temperature. The obtained electrical properties could indicate a promising application of MIM Capacitors.","PeriodicalId":68199,"journal":{"name":"材料物理与化学进展(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47472066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Modelling of the High-Energy Ball Milling Process 高能球磨过程的建模

材料物理与化学进展(英文) Pub Date : 2021-01-20 DOI: 10.4236/AMPC.2021.111004

M. Mhadhbi

引用次数: 11

Simulation of a Laboratory Scale Ball Mill via Discrete Element Method Modelling 用离散元法建模的实验室球磨机仿真

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/ampc.2021.1110016

M. Mhadhbi

引用次数: 3

Preparation of Sulfhydryl Functionalized Mesoporous Silica Particles and Application in Adsorption of Cd2+ 巯基功能化介孔二氧化硅颗粒的制备及其在吸附Cd2+中的应用

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/ampc.2021.1111018

Hong-yu Yu, Jiaming Zhang, S. Mao, Xiao Wei

引用次数: 2

Light-Dependent Properties of Finishing and Leather Defects 涂饰和皮革缺陷的光依赖性

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/ampc.2021.1112020

C. Flório, G. Calvanese

{"title":"Light-Dependent Properties of Finishing and Leather Defects","authors":"C. Flório, G. Calvanese","doi":"10.4236/ampc.2021.1112020","DOIUrl":"https://doi.org/10.4236/ampc.2021.1112020","url":null,"abstract":"The uniformity of the colour in leathers for the furnishing and automotive sec-tors is a particularly important feature, especially for white or light-coloured articles, intended to the high-end market; on these articles any colour alteration can be very visible and unpleasant, with possible technical and economic consequences for the producers. In a previous study, we analysed the possible causes behind the formation of some peculiar pink/salmon stains on different kinds of white/beige/light-coloured leather furnishing items, where we foca-lized our attention on TiO 2 properties and its possible interaction with some organic-based antioxidants. In recent years, due to many other similar cases of defects that occurred to tanners and to upholstery traders, we decided to enhance the investigations concerning this topic. More in detail we analysed, defective leathers, powder pigments and chemicals, in order to identify the possible role of some substances in this issue, with particular reference to some antioxidants and aluminosilicates, where several diagnostic techniques have been utilised, as ATR-IR (Attenuated Total Reflectance IR Spectrosco-py), SEM-EDX (Scanning Electron Microscopy-Energy Dispersive X-ray Analysis), XRF (X-ray Fluorescence spectrometry), GC-MS (Gas Chromato-graphy-Mass Spectrometry), and DSC/TGA (Differential scanning calorime-try/Thermogravimetry) equipment.","PeriodicalId":68199,"journal":{"name":"材料物理与化学进展(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70332168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural Features and Properties of the Vitreous Part of the System 50P2O5-25CaO-(25-x)Na2O-xCoO (with 0 ≤ x ≤ 25; mol%) 50P2O5-25CaO-(25-x)Na2O-xCoO体系玻璃体部分的结构特征与性能(0≤x≤25;摩尔%)

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/ampc.2021.1112021

Brahim Bachachir, Y. Er-rouissi, Radouane Makhlouk, A. Harrati, A. El Bouari, S. Aqdim

{"title":"Structural Features and Properties of the Vitreous Part of the System 50P2O5-25CaO-(25-x)Na2O-xCoO (with 0 ≤ x ≤ 25; mol%)","authors":"Brahim Bachachir, Y. Er-rouissi, Radouane Makhlouk, A. Harrati, A. El Bouari, S. Aqdim","doi":"10.4236/ampc.2021.1112021","DOIUrl":"https://doi.org/10.4236/ampc.2021.1112021","url":null,"abstract":"The glass series 50P 2 O 5 -25CaO-(25−x)Na 2 O-xCoO (with (0 ≤ x ≤ 25; mol%), has been prepared by direct melting at 1080˚C ± 20˚C. The introduction of cobalt in calcium phosphate glasses is used to compare its effect with calcium in inhibition corrosion. The dissolution rate has been investigated. It indicated an improvement of chemical durability when the cobalt oxide increases in the network glass at the expense of Na 2 O content. Both, IR spectroscopy and X-ray diffraction have confirmed the structure changes when the CoO content increases in the glass. This change results in the disappearance of isolated orthophosphate groups followed of a polymerizing of the structure from isolated orthophosphate towards pyrophosphate chains (Q 1 ) by promoting the formation of olygophosphates (mixed Q 1 -Q 2 ) rich in pyrophosphates. Analysis of the density values, showed an increase of density with the increase CoO content. The covalent radius values of oxygen r cal (O 2− ) indicate a signifi-cant decrease and therefore a relatively high reinforcement of the met-al-oxygen-phosphorus (Co-O-P) bonds. SEM micrograph confirms the evolution of the glass structural morphology. The sample having a maximum CoO content confirms a homogeneous glass phase with quite crystalline particles. This property is prerequisite for many interesting industrial applications.","PeriodicalId":68199,"journal":{"name":"材料物理与化学进展(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70332231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Generalized Parameters of Porous Materials as Similarity Numbers 多孔材料的广义参数相似数

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/ampc.2021.1111017

L. Titelman

引用次数: 3

Dye Regeneration Kinetics of Sensitized Nickel Oxide Films under Illumination Investigated by Scanning Electrochemical Microscopy 扫描电化学显微镜研究光照下敏化氧化镍膜染料再生动力学

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/AMPC.2021.114008

Anshebo Getachew Alemu, Teketel Alemu

引用次数: 2

Research of the Characteristic Dimension of the Transfers during the Convective Drying of the Sweet Potato for the Parallelepipedic and Spherical Shapes 平行六面体和球形甘薯对流干燥过程中传热特征尺寸的研究

材料物理与化学进展(英文) Pub Date : 2021-01-01 DOI: 10.4236/ampc.2021.1112022

Kondia Honoré Ouoba, Abdou-Salam Ganame, F. Zougmore

引用次数: 0